MONET Claude (1840-1926) Signed autograph letter addressed to Gustave GEFFROY Giverny, April 12, 1921, 3 pages in-12 in pencil on letterhead "Giverny by Vernon Eure", envelope preserved. The letter relates to Gustave Caillebotte's brothers, to Caillebotte himself and to Auguste Renoir. Gustave Geffroy meets Claude Monet in Belle-Île-en-Mer in 1892. Art critic, art historian and director of the Manufacture nationale des Gobelins, he published among others his Histoire de l'impressionnisme (History of Impressionism).